29 Zvimedu zveMechanical CNC Machining Knowledge

1. MuCNC machining, zvinotevera zvinofanirwa kutariswa zvakanyanya:

(1) Kune yazvino hupfumi CNC lathes muChina, akajairwa matatu-chikamu asynchronous mota anoshandiswa kuwana nhanho yekumhanya shanduko kuburikidza nemainverters. Kana pasina mechanical deceleration, torque inobuda yespindle inowanzo shaya kukwana pakumhanya kwakaderera. Kana iyo yekucheka mutoro wakakura zvakanyanya, zviri nyore kuwana stuffy. Mota, asi mamwe maturusi emuchina ane magiya ekugadzirisa dambudziko iri;

(2) Sezvinobvira, chishandiso chinogona kupedzisa kugadzirisa chikamu kana shanduko yebasa. Pakupedzisa kukuru, tarisa zvakanyanya kudzivirira shanduko yemidziyo pakati kuti uve nechokwadi chekuti chishandiso chinogona kupedzwa mukushanda kumwe.

(3) Paunenge uchishandisa NC kutendeuka kushandura tambo, shandisa yakanyanya kumhanya sezvinobvira kuti uwane yemhando yepamusoro uye inoshanda kugadzirwa;

(4) Shandisa G96 pose pazvinobvira;

(5) Mhedzisiro yekutanga yekumhanyisa machining ndeyekuita kuti chikafu chipfuure kupisa conduction kumhanya, kuitira kuti kupisa kwekucheka kunoburitswa nemachipisi esimbi kuparadzanisa kupisa kwekucheka kubva kune workpiece uye kuve nechokwadi kuti workpiece haina kupisa. kana zvishoma. Nokudaro, kushandiswa kwepamusoro-soro kunosarudzwa pakakwirira Kukurumidza kucheka kunofananidzwa nepamusoro pekudya paunenge uchisarudza chiduku chiduku chekudya chemashure;

(6) Teerera kune muripo wechishandiso mhino R.

2. Kana kuwanda kwebanga rekumusana kwakapetwa kaviri, simba rekucheka rinopetwa kaviri;

Kana chiyero chekudya chinowedzera kaviri, simba rekucheka rinowedzera ne70%;

Apo kukurumidza kucheka kunowedzera kaviri, simba rekucheka rinoderera zvishoma nezvishoma;

Mune mamwe mazwi, kana G99 ikashandiswa, kukurumidza kwekucheka kunowedzera, uye simba rekucheka harizoshanduki zvakanyanya.

3. Simba rekucheka uye kupisa kwekucheka kunogona kutongwa maererano nekubudiswa kwesimbi filings.

4. Kana iyo chaiyo kukosha kweyero yakayerwa kukosha X uye dhayamita Y yekudhirowa yakakura kupfuura 0.8, mudziyo wekutenderedza une chechipiri deflection angle ye52 madhigirii (ndiko kuti, chishandiso chinotenderedza chine blade ye35 degrees uye main deflection angle ye93 degrees) ) Iyo R kubva mumotokari inogona kupukuta banga panzvimbo yekutanga.

5. Tembiricha inomiririrwa neruvara rwesimbi filings:

White iri pasi pe200 degrees

220-240 madhigirii yero

Rima bhuruu 290 madhigirii

Bhuruu 320-350 madhigirii

Purple dema yakakura kupfuura 500 degrees

Tsvuku yakakura kupfuura 800 degrees

6.FUNAC OI mtc kazhinji default G rairo:

G69: Handina chokwadi

G21: Metric saizi yekuisa

G25: Spindle speed fluctuation yekuona yadzimwa

G80: Kutenderera kwemumagaba kwakadzimwa

G54: default coordinate system

G18: ZX kusarudzwa kwendege

G96 (G97): Constant linear speed control

G99: Feed per revolution

G40: Chishandiso chemhino muripo wakadzimwa (G41 G42)

G22: Kuchengetedzwa sitiroko yekuona iripo

G67: Macro chirongwa modal call yakadzimwa

G64: Handina chokwadi

G13.1: Kanzura polar coordinate interpolation mode

7. Mutambo wekunze unowanzo 1.3P, uye shinda yemukati ndeye 1.08P.

8.Thread speed S1200 / pitch * kuchengetedza chinhu (kazhinji 0.8).

9. Manual chishandiso mhino R muripo formula: chamfer kubva pasi kusvika kumusoro: Z = R * (1-tan (a / 2)) X = R (1-tan (a / 2)) * tan (a) kubva The chamfers kubva kumusoro kusvika pasi pemotokari ichaderedzwa kusvika kuwedzera.

10. Pamusoro pekuwedzera kwe 0.05 muzvokudya, kukurumidza kutenderera kunoderedzwa ne50-80 rpm. Izvi zvinodaro nekuti kudzikisa kukurumidza kutenderera kunoreva kuti kupfeka kwechishandiso kunoderedzwa uye simba rekucheka rinowedzera zvishoma nezvishoma, izvo zvinobhadhara kuwedzera kwekucheka simba uye tembiricha nekuda kwekuwedzera kwekudya. The impact.

11. Kupesvedzera kwekucheka kukurumidza uye simba rekucheka pachigadziro chakakosha zvikuru. Chikonzero chikuru chekucheka kwechigadzirwa ndechokuti simba rekucheka rakanyanyisa. Ukama huri pakati pekucheka kukurumidza uye simba rekucheka: Inokurumidza kukurumidza kucheka, chikafu hachichinje, uye simba rekucheka rinoderera zvishoma nezvishoma. Panguva imwecheteyo, iyo inokurumidza kukurumidza kucheka, iyo inokurumidza chimbo ichapfeka, simba rekucheka richawedzera, uye tembiricha ichawedzera. Iyo yakakwirira, apo simba rekucheka uye kushushikana kwemukati kwakakura zvakanyanya kuti kuiswa kumire, pachava nekudengenyeka kwenyika (zvechokwadi, kunewo kushushikana uye kuderera kwekuoma kunokonzerwa nekushanduka kwekushisa).

12. Kufurira pakucheka tembiricha: kucheka kukurumidza, chiyero chekudya, kumashure kucheka huwandu;

Mhedzisiro pakucheka simba: kumashure kucheka huwandu, chiyero chekudya, kucheka kukurumidza;

Mhedzisiro pakusimba kwechishandiso: kukurumidza kucheka, chiyero chekudya, chiyero chekudzosera.

13. Vibration uye chipping zvinowanzoitika mune slot. Zvose zvinokonzeresa ndezvekuti simba rekucheka rinova rakakura uye chishandiso hachina kuomarara zvakakwana. Iyo yakapfupika yekuwedzera kwechishandiso kureba, iyo diki yekumashure kona, uye yakakura nzvimbo yeblade, zviri nani kuomarara. Inogona kutevera simba guru rekucheka, asi hupamhi hwehupamhi hwekucheka kwekucheka, iyo yakakura simba rekucheka rinogona kumira, asi simba rayo rekucheka rinowedzerawo. Mukupesana, iyo idiki iyo inocheka inocheka, idiki iyo simba iyo inogona kumira. Simba rayo rekucheka idiki zvakare.

14. Zvikonzero zvekuzunguzika mumotokari slot:

(1) Hurefu hwakareba hwemucheki hwakareba, izvo zvinoderedza kuoma;

(2) Chiyero chekudya chinononoka, izvo zvichaita kuti chikwata chekucheka chikwata chiwedzere, izvo zvinozokonzera kudengenyeka kukuru. Iyo fomula ndeiyi: P = F / kumashure kwekudya huwandu * f P ndiyo unit yekucheka simba F isimba rekucheka, uye iyo yekumhanyisa inokurumidza Ichazunzawo banga;

(3) Chishandiso chemuchina hachina kuomarara zvakakwana, ndiko kuti, chishandiso chinogona kutakura simba rekucheka, asi mudziyo wemuchina haugone kuutakura. Kuti zvijeke, mudziyo wemashini haufambi. Kazhinji, mibhedha mitsva haina matambudziko akadaro. Mubhedha une matambudziko akadai wasakara. Chero muurayi wemuchina anowanzosangana nawo.

15. Paunenge uchitakura mutoro, zviyero zvakaonekwa zvakanaka pakutanga, asi mushure memaawa mashomanana, zviyero zvakashandurwa uye zviyero hazvina kugadzikana. Chikonzero chinogona kunge chiri chekuti pakutanga, mauto ekucheka aive matsva nekuti makucheka aive matsva. Haisi yakakura kwazvo, asi mushure menguva, chimbo chinopfeka uye simba rekucheka rinova rakakura, izvo zvinoita kuti workpiece ishanduke pane chuck, saka ukuru hunogara huchimhanya uye husina kugadzikana.

16. Paunenge uchishandisa G71, maitiro eP neQ haakwanise kudarika nhamba yekutevedzana kwechirongwa chose, zvikasadaro alarm ichaitika: G71-G73 fomati yekuraira haina kunaka, zvirinani muFUANC.

17. Iyo subroutine muFANUC system ine mafomati maviri:

(1) Nhamba nhatu dzekutanga dzeP000 0000 dzinoreva huwandu hwematenderedzwa, uye mana ekupedzisira manhamba ndiyo nhamba yechirongwa;

(2) Mavara mana ekutanga eP0000L000 ndiyo nhamba yepurogiramu, uye matatu ekupedzisira manhamba eL ndiyo nhamba yematenderedzwa.

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19. Paunenge uchichera makomba akadzika, chibooreso hachikuya groove yekucheka kuti iite nyore drill chip kubviswa.

20. Kana chibatiso chinoshandiswa pakuchera, chibooreso chinogona kutenderedzwa kushandura dhayamita yegomba.

21. Pakuchera ziso repakati pesimbi isina tsvina, kana pakuchera ziso resimbi isina tsvina, chibooreso chemukati kana chepakati chepakati chinofanirwa kunge chiri chidiki, zvikasadaro hachigone kufambiswa. Paunenge uchichera necobalt drill, usakuya groove kudzivirira dhiri annealing panguva yekuchera.

22. Maererano nehurongwa, pane kazhinji marudzi matatu ekuvhara: imwe yechinhu chimwe nechimwe, maviri pachinhu chimwe nechimwe, uye tsvimbo yose yezvinyorwa.

23. Kana ellipse ichionekwa mushinda yemotokari, zvinhu zvinogona kunge zvakasununguka. Shandisa banga remazino kuti ucheke mamwe mashoma.

24. Mune mamwe masisitimu ayo macro program anogona kuiswa, macro programme anogona kushandiswa pachinzvimbo che subroutine cycles. Izvi zvinochengetedza nhamba yepurogiramu uye inodzivirira dambudziko rakawanda.

25. Kana iyo drill ichishandiswa pakugadzirisa zvakare, asi jitter yegomba yakakura, ipapo chibooreso chepasi chakadzika chinogona kushandiswa kugadzirisazve, asi kurovera kunofanira kuva kupfupi kuti kuwedzere kuoma.

26. Kana ukadhirowa zvakananga pamushini wekuchera, gomba dhayamita rinogona kusiyana, asi kana saizi yegomba yakawedzera pamushini wekuchera, sekushandisa chibooreso che10MM kuwedzera gomba pamushini wekuchera, the yakawedzera gomba dhayamita kazhinji Around 3 waya kushivirira.

27. Mugomba duku (kuburikidza negomba) remotokari, edza kuita kuti machipisi arambe achiputika uye obva abuda mumuswe. Mapoinzi makuru emachipisi ndeaya: chekutanga, chinzvimbo chebanga chinofanira kunge chakakwira zvakafanira, uye chechipiri, iyo yakakodzera blade inclination angle, uye huwandu hwebanga Uye chiyero chekudya, yeuka kuti banga harigone kuve rakaderera kana kuti riri. nyore kuputsa chip. Kana iyo yechipiri deflection angle yebanga yakakura, bhara rekushandisa harina kunamatira kunyangwe chip chatyoka. Kana iyo yechipiri deflection angle idiki zvakanyanya, machipi anozojamba chishandiso mushure mekuputika kwechip. Danda rinowanzoita njodzi.

28. Iyo yakakura chikamu chemuchinjikwa che shank mugomba, zvakanyanya kuoma kuzunungusa banga. Zvakare, bhandi rakasimba rerubha rinogona kusungirirwa kune shank nekuti iyo yakasimba rubber band inogona kuita basa rekutora vibration.

29. Mugomba remhangura yemotokari, iyo R yebanga inogona kuva yakakura zvakakodzera (R0.4-R0.8), kunyanya kana taper iri pasi pemotokari, zvikamu zvesimbi zvingasava chinhu, uye zvikamu zvemhangura zvichava. kupfava kwazvo.

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